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-rw-r--r--erts/emulator/beam/utils.c285
1 files changed, 285 insertions, 0 deletions
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index ccc411462e..84deaecb87 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -3466,6 +3466,291 @@ erts_free_read_env(void *value)
erts_free(ERTS_ALC_T_TMP, value);
}
+
+typedef struct {
+ size_t sz;
+ char *ptr;
+} ErtsEmuArg;
+
+typedef struct {
+ int argc;
+ ErtsEmuArg *arg;
+ size_t no_bytes;
+} ErtsEmuArgs;
+
+ErtsEmuArgs saved_emu_args = {0};
+
+void
+erts_save_emu_args(int argc, char **argv)
+{
+#ifdef DEBUG
+ char *end_ptr;
+#endif
+ char *ptr;
+ int i;
+ size_t arg_sz[100];
+ size_t size;
+
+ ASSERT(!saved_emu_args.argc);
+
+ size = sizeof(ErtsEmuArg)*argc;
+ for (i = 0; i < argc; i++) {
+ size_t sz = sys_strlen(argv[i]);
+ if (i < sizeof(arg_sz)/sizeof(arg_sz[0]))
+ arg_sz[i] = sz;
+ size += sz+1;
+ }
+ ptr = (char *) malloc(size);
+#ifdef DEBUG
+ end_ptr = ptr + size;
+#endif
+ saved_emu_args.arg = (ErtsEmuArg *) ptr;
+ ptr += sizeof(ErtsEmuArg)*argc;
+ saved_emu_args.argc = argc;
+ saved_emu_args.no_bytes = 0;
+ for (i = 0; i < argc; i++) {
+ size_t sz;
+ if (i < sizeof(arg_sz)/sizeof(arg_sz[0]))
+ sz = arg_sz[i];
+ else
+ sz = sys_strlen(argv[i]);
+ saved_emu_args.arg[i].ptr = ptr;
+ saved_emu_args.arg[i].sz = sz;
+ saved_emu_args.no_bytes += sz;
+ ptr += sz+1;
+ sys_strcpy(saved_emu_args.arg[i].ptr, argv[i]);
+ }
+ ASSERT(ptr == end_ptr);
+}
+
+Eterm
+erts_get_emu_args(Process *c_p)
+{
+#ifdef DEBUG
+ Eterm *end_hp;
+#endif
+ int i;
+ Uint hsz;
+ Eterm *hp, res;
+
+ hsz = saved_emu_args.no_bytes*2;
+ hsz += saved_emu_args.argc*2;
+
+ hp = HAlloc(c_p, hsz);
+#ifdef DEBUG
+ end_hp = hp + hsz;
+#endif
+ res = NIL;
+
+ for (i = saved_emu_args.argc-1; i >= 0; i--) {
+ Eterm arg = buf_to_intlist(&hp,
+ saved_emu_args.arg[i].ptr,
+ saved_emu_args.arg[i].sz,
+ NIL);
+ res = CONS(hp, arg, res);
+ hp += 2;
+ }
+
+ ASSERT(hp == end_hp);
+
+ return res;
+}
+
+
+Eterm
+erts_get_ethread_info(Process *c_p)
+{
+ Uint sz, *szp;
+ Eterm res, *hp, **hpp, *end_hp = NULL;
+
+ sz = 0;
+ szp = &sz;
+ hpp = NULL;
+
+ while (1) {
+ Eterm tup, list, name;
+#if defined(ETHR_NATIVE_ATOMIC32_IMPL) \
+ || defined(ETHR_NATIVE_ATOMIC64_IMPL) \
+ || defined(ETHR_NATIVE_DW_ATOMIC_IMPL)
+ char buf[1024];
+ int i;
+ char **str;
+#endif
+
+ res = NIL;
+
+#ifdef ETHR_X86_MEMBAR_H__
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp, "sse2"),
+#ifdef ETHR_X86_RUNTIME_CONF_HAVE_SSE2__
+ erts_bld_string(hpp, szp,
+ (ETHR_X86_RUNTIME_CONF_HAVE_SSE2__
+ ? "yes" : "no"))
+#else
+ erts_bld_string(hpp, szp, "yes")
+#endif
+ );
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp,
+ "x86"
+#ifdef ARCH_64
+ "_64"
+#endif
+ " OOO"),
+ erts_bld_string(hpp, szp,
+#ifdef ETHR_X86_OUT_OF_ORDER
+ "yes"
+#else
+ "no"
+#endif
+ ));
+
+ res = erts_bld_cons(hpp, szp, tup, res);
+#endif
+
+#ifdef ETHR_SPARC_V9_MEMBAR_H__
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp, "Sparc V9"),
+ erts_bld_string(hpp, szp,
+#if defined(ETHR_SPARC_TSO)
+ "TSO"
+#elif defined(ETHR_SPARC_PSO)
+ "PSO"
+#elif defined(ETHR_SPARC_RMO)
+ "RMO"
+#else
+ "undefined"
+#endif
+ ));
+
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+#endif
+
+#ifdef ETHR_PPC_MEMBAR_H__
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp, "lwsync"),
+ erts_bld_string(hpp, szp,
+#if defined(ETHR_PPC_HAVE_LWSYNC)
+ "yes"
+#elif defined(ETHR_PPC_HAVE_NO_LWSYNC)
+ "no"
+#elif defined(ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__)
+ ETHR_PPC_RUNTIME_CONF_HAVE_LWSYNC__ ? "yes" : "no"
+#else
+ "undefined"
+#endif
+ ));
+
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+#endif
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp, "Native rw-spinlocks"),
+#ifdef ETHR_NATIVE_RWSPINLOCK_IMPL
+ erts_bld_string(hpp, szp, ETHR_NATIVE_RWSPINLOCK_IMPL)
+#else
+ erts_bld_string(hpp, szp, "no")
+#endif
+ );
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+ tup = erts_bld_tuple(hpp, szp, 2,
+ erts_bld_string(hpp, szp, "Native spinlocks"),
+#ifdef ETHR_NATIVE_SPINLOCK_IMPL
+ erts_bld_string(hpp, szp, ETHR_NATIVE_SPINLOCK_IMPL)
+#else
+ erts_bld_string(hpp, szp, "no")
+#endif
+ );
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+
+ list = NIL;
+#ifdef ETHR_NATIVE_DW_ATOMIC_IMPL
+ if (ethr_have_native_dw_atomic()) {
+ name = erts_bld_string(hpp, szp, ETHR_NATIVE_DW_ATOMIC_IMPL);
+ str = ethr_native_dw_atomic_ops();
+ for (i = 0; str[i]; i++) {
+ erts_snprintf(buf, sizeof(buf), "ethr_native_dw_atomic_%s()", str[i]);
+ list = erts_bld_cons(hpp, szp,
+ erts_bld_string(hpp, szp, buf),
+ list);
+ }
+ str = ethr_native_su_dw_atomic_ops();
+ for (i = 0; str[i]; i++) {
+ erts_snprintf(buf, sizeof(buf), "ethr_native_su_dw_atomic_%s()", str[i]);
+ list = erts_bld_cons(hpp, szp,
+ erts_bld_string(hpp, szp, buf),
+ list);
+ }
+ }
+ else
+#endif
+ name = erts_bld_string(hpp, szp, "no");
+
+ tup = erts_bld_tuple(hpp, szp, 3,
+ erts_bld_string(hpp, szp, "Double word native atomics"),
+ name,
+ list);
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+ list = NIL;
+#ifdef ETHR_NATIVE_ATOMIC64_IMPL
+ name = erts_bld_string(hpp, szp, ETHR_NATIVE_ATOMIC64_IMPL);
+ str = ethr_native_atomic64_ops();
+ for (i = 0; str[i]; i++) {
+ erts_snprintf(buf, sizeof(buf), "ethr_native_atomic64_%s()", str[i]);
+ list = erts_bld_cons(hpp, szp,
+ erts_bld_string(hpp, szp, buf),
+ list);
+ }
+#else
+ name = erts_bld_string(hpp, szp, "no");
+#endif
+ tup = erts_bld_tuple(hpp, szp, 3,
+ erts_bld_string(hpp, szp, "64-bit native atomics"),
+ name,
+ list);
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+ list = NIL;
+#ifdef ETHR_NATIVE_ATOMIC32_IMPL
+ name = erts_bld_string(hpp, szp, ETHR_NATIVE_ATOMIC32_IMPL);
+ str = ethr_native_atomic32_ops();
+ for (i = 0; str[i]; i++) {
+ erts_snprintf(buf, sizeof(buf), "ethr_native_atomic32_%s()", str[i]);
+ list = erts_bld_cons(hpp, szp,
+ erts_bld_string(hpp, szp, buf),
+ list);
+ }
+#else
+ name = erts_bld_string(hpp, szp, "no");
+#endif
+ tup = erts_bld_tuple(hpp, szp, 3,
+ erts_bld_string(hpp, szp, "32-bit native atomics"),
+ name,
+ list);
+ res = erts_bld_cons(hpp, szp, tup, res);
+
+ if (hpp) {
+ HRelease(c_p, end_hp, *hpp)
+ return res;
+ }
+
+ hp = HAlloc(c_p, sz);
+ end_hp = hp + sz;
+ hpp = &hp;
+ szp = NULL;
+ }
+}
+
/*
* To be used to silence unused result warnings, but do not abuse it.
*/
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 12:02:12 +0000